Agrostis muelleriana

HABIT Annual; caespitose. Culms erect; 20–30 cm long. Culm-nodes glabrous. Leaf-sheaths smooth, or scaberulous. Ligule an eciliate membrane; 2–3 mm long; acute. Leaf-blades filiform, or linear; conduplicate; 3–10 cm long; 1–3 mm wide.

INFLORESCENCE Inflorescence a panicle; embraced at base by subtending leaf.

Panicle contracted; linear; 2–6 cm long. Primary panicle branches appressed. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3–3.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus glabrous.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 3–3.5 mm long; 1.1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.7–3.2 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma oblong; 2.7–3 mm long; hyaline; without keel; 5 -veined. Lemma apex erose; truncate; muticous, or mucronate, or awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; straight; 1–1.5 mm long overall. Palea present, or absent or minute; 0–0.33 length of lemma; hyaline.

FLOWER Lodicules 2; membranous. Anthers 3; 0.6–0.8 mm long.

FRUIT Caryopsis with adherent pericarp; ellipsoid; 1.3 mm long.

DISTRIBUTION Australasia: Australia and New Zealand.

NOTES Aveneae. Vickery 1993.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.